This product is equipped with an overwinding prevention device, a reverse rotation prevention device, and a dual safety brake device, which automatically cuts off the power when the wire rope reaches the upper limit or reverses [1-2]. The load-bearing frame is made of cast steel, and the motor system uses an industrial-grade squirrel-cage induction motor with three voltage options. The brake system includes a dual brake device for the motor and gear parts, using a disc brake to achieve instant braking; the electronic control system uses DC-24V low-voltage control, and the distribution board uses a high-current card PCB circuit board and Japanese relays.